| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _HELPPOPUPWINDOW_HXX_ |
| #define _HELPPOPUPWINDOW_HXX_ |
| |
| //------------------------------------------------------------------------ |
| // includes |
| //------------------------------------------------------------------------ |
| |
| #include <sal/types.h> |
| #include <rtl/ustring.hxx> |
| #include <osl/mutex.hxx> |
| |
| #define WIN32_LEAN_AND_MEAN |
| #if defined _MSC_VER |
| #pragma warning(push, 1) |
| #endif |
| #include <windows.h> |
| #if defined _MSC_VER |
| #pragma warning(pop) |
| #endif |
| |
| //--------------------------------------------- |
| // declaration |
| //--------------------------------------------- |
| |
| /* |
| A simple popup window similary to the one the |
| windows help (using WinHelp) creates when called |
| with the option HELP_CONTEXTPOPUP. |
| |
| The interface is very simple but necessary for our |
| needs. |
| The window automaticaly calculates the necessary |
| dimensions of the window and a appropriate show |
| position based on the position the client provides. |
| When the user click any mouse button or hits any key |
| the window closes itself and disappears. |
| */ |
| |
| class CHelpPopupWindow |
| { |
| public: |
| |
| /* |
| The client may set some parameter of the window. |
| When the client omits to set one or more values |
| a default value will be taken. |
| The values are in pixel. |
| */ |
| CHelpPopupWindow( |
| HINSTANCE hInstance, |
| HWND hwndParent ); |
| |
| /* |
| dtor |
| */ |
| ~CHelpPopupWindow( ); |
| |
| /* |
| The client may set the text the window is showing |
| on next activation. |
| */ |
| void SAL_CALL setText( const rtl::OUString& aHelpText ); |
| |
| /* |
| Shows the window with the text that was last set. |
| The posistion is the prefered position. The window |
| may itself show at a slightly different position |
| if it fits not at the prefered position. |
| */ |
| void SAL_CALL show( sal_Int32 x, sal_Int32 y ); |
| |
| HWND SAL_CALL setParent( HWND hwndNewParent ); |
| |
| private: |
| void SAL_CALL onPaint( HWND, HDC ); |
| void SAL_CALL onNcDestroy(); |
| void SAL_CALL onCreate( HWND ); |
| |
| POINT SAL_CALL calcUpperLeftCorner( ); |
| void SAL_CALL calcWindowRect( LPRECT lprect ); |
| |
| void SAL_CALL adjustWindowSize( sal_Int32*, sal_Int32* ); |
| void SAL_CALL adjustWindowPos( sal_Int32 x, sal_Int32 y, sal_Int32 cx, sal_Int32 cy ); |
| |
| ATOM SAL_CALL RegisterWindowClass( ); |
| void SAL_CALL UnregisterWindowClass( ); |
| |
| static LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ); |
| |
| private: |
| sal_Int32 m_hMargins; |
| sal_Int32 m_vMargins; |
| sal_Int32 m_avCharWidth; |
| sal_Int32 m_avCharHeight; |
| HWND m_hwnd; |
| HWND m_hwndParent; |
| HINSTANCE m_hInstance; |
| sal_Bool m_bWndClassRegistered; |
| ::rtl::OUString m_HelpText; |
| HBITMAP m_hBitmapShadow; |
| HBRUSH m_hBrushShadow; |
| |
| // the window class has to be registered only |
| // once per process, so multiple instance of this class |
| // share the registered window class |
| static ATOM s_ClassAtom; |
| static osl::Mutex s_Mutex; |
| static sal_Int32 s_RegisterWndClassCount; |
| |
| // prevent copy and assignment |
| private: |
| CHelpPopupWindow( const CHelpPopupWindow& ); |
| CHelpPopupWindow& operator=( const CHelpPopupWindow& ); |
| }; |
| |
| #endif |